Evolution of WHO air quality guidelines: past, present and future

ABSTRACT

This document summarizes key WHO publications in the field of air quality and health since the 1950s, which led to the development of the series of WHO air quality guidelines. It outlines the evolution of the scientific evidence on the health effects of air pollution and of its interpretation, supporting policy and other decision-makers in setting outdoor and indoor air quality management strategies worldwide. Current WHO activities and their future directions in this field are also presented.